Is Primuline vegan?

Primuline

Vegan

Primuline is a synthetic dye containing the benzothiazole ring system, used as a fluorescent dye and in various textile and biological applications. It is also known as Direct Yellow 59 or Chloramine Yellow.

Also known as Carnotine, Chloramine Yellow, Direct Yellow 59
CAS number 8064-60-6
CI number CI 49010
Last reviewed 3 June 2026

Sources

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.